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Message-ID: <wvn5hh63omtqvs4e3jy7vfu7fvkikkzkhqbmcd7vdtmm7jta7s@qjagmjwle2z3>
Date: Mon, 12 Feb 2024 23:33:30 -0500
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Kees Cook <keescook@...omium.org>, 
	Suren Baghdasaryan <surenb@...gle.com>, akpm@...ux-foundation.org, mhocko@...e.com, vbabka@...e.cz, 
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Subject: Re: [PATCH v3 31/35] lib: add memory allocations report in show_mem()

On Mon, Feb 12, 2024 at 07:22:42PM -0500, Steven Rostedt wrote:
> On Mon, 12 Feb 2024 16:10:02 -0800
> Kees Cook <keescook@...omium.org> wrote:
> 
> > >  #endif
> > > +#ifdef CONFIG_MEM_ALLOC_PROFILING
> > > +	{
> > > +		struct seq_buf s;
> > > +		char *buf = kmalloc(4096, GFP_ATOMIC);  
> > 
> > Why 4096? Maybe use PAGE_SIZE instead?
> 
> Will it make a difference for architectures that don't have 4096 PAGE_SIZE?
> Like PowerPC which has PAGE_SIZE of anywhere between 4K to 256K!

it's just a string buffer

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